Molding fastener



Sept. 16, 1952 W.'H. CHURCHILL 2,610,375.

MOLDING FASTENER Fil d Jan. 21, 1947 aawmi I Patented Sept. 16, 1952 UNI-TED ,S'TATES V PATENT- OFF 7 a I oLnI riG FASTENER Wilmer H.-.Churchill, Saugus;- Mass'., assig'norto -United-Carr Fastener'Corpo'ration, Cambridge, 7 Mass., a corporation of Massachusetts a Application Janu ary 2l, 1947, Serial No. "723,247

' ing of irregular cross section and-varying channel depth while maintaining the shank of the T- bolt substantially midway between the opposed molding edges.

I vA further object of the invention is the provision of an improved molding fastener of the T- a bolt type that may be insertedwith an irregularly shaped channel of a molding in. tensioned engagement with the inner faces ofopposite flanges and slid therealong' to a predetermined position in the molding for attachment to an apertured support.

Other aims and objects of the invention will be apparent to persons skilled in the art to which the invention relates, from a consideration of the accompanying drawings and annexed description illustrating and describing a preferred embodiment of the invention.

In the drawings Fig. 1 is an inner face elevation of a molding strip illustrating a fastener of the invention positioned therein;

Fig. 2 is a transverse. sectional view of the molding and fastener as taken on the line 2-2 of Fig. 1;

Fig, 3 is a detail perspective view of the fastener as viewed from one side thereof; and

Fig. 4 is a detail perspective View of the fastener as viewed from the opposite side illustrated in Fig. 3.

Referring to the drawings, the fastener of the present invention is designed for use particularly with a channel-shaped molding I having opposed inturned flanges 2--Z in the inner face thereof and an irregularly shaped wall 3 on the front face thereof, the irregularly shaped or contoured wall presenting opposed channels 4 and 5 of different depths under opposite flanges 2 and 2 respectively. As will be readily understood in the art the molding is adapted to be fixedly attached to a support 6 apertured at 1, as by a bolt and nut fastening 8, as is customary, and preferably the bolt portion of the fastening 8 is a part of the fastener member hereinafter described.

As herein illustrated, the fastener of the pres- 1 Claim. (01.24 13) V '2 cm invention is of the "T-bolt type having'a threaded shank l0 provided with an enlarged head II at one end, a portion of the shank adjacent the head ll being squared or polygonal shaped to "nonfrotatably' receive the fastener head [5. V The head l5 of the fasteneris advantageously formed of a flsingl'e piece of thin'sheet metal, for example, carbon steel, which may be suitably shaped and then hardenedj'as by heat-treating, to provide adequate strength combinedwith lightness in weight.

The fastener head l5 preferably comprises a body portion 'of suitable length and width for' and along an opposite edge with a down-turned substantially right angularly disposed flange I'ladapted for edge contact with the inner face of the wall 3. The rolled edge I6 may be of continuous length or of spaced sections as illustrated in Fig. 4, and the angularly disposed flange I! is preferably of less length than the head I5 and disposed between spaced rolled edge portions l8 of similar shape to, but opposing the rolled edge It. The rolled edge It is adapted to be fitted in the deepest side channel 4 of an irregularly shaped molding (see Fig. 2) and to make face contact with the under face of the adjoining flange 2 and the inner face of the wall 3.

The angularly disposed flange H is advantageously deeper than the rolled edge l6 and is adapted to make edge contact with the inner face of the molding wall 3. If the distance between the inner face of the flange 2 and the wall 3 at the shallowest channel is less than the depth of the flange [1, said flange may be bent inwardly so that the head is supported in the molding by face engagement of the rolled portions [8 with the wall 3.

A fastener head of the above described type, when positioned in an irregularly shaped molding such as shown in Fig. 2, will usually not be positioned centrally of the molding. In such cases the rolled edge IE will be positioned in the deeper channel 4 and well under the adjacent flange 2 for face-bearing engagement with the molding wall 3 outwardly of the free edge of the flange 2. The opposite side edge of the head l5, from which extends the flange l1 and rolled edge portions l 8, may be disposed substantially in the transverse plane of the inner edge of the flange 2 or even slightly inwardly thereof. In such cases contact between the head l5 and the inner face of the flange 2 is effected by edge portions l9 disposed substantially in the plane of the outer face of the head l5 at the outer terminal ends of out- Wardly bent tongues 20 which may be cut from the bodyi'ofzthepnetal providing therolled edge portionslfiofthe illustrated embodiment. The flange H and the tongues 26 provide camming surfaces for receiving an edge of the molding flange and guiding it to a fastened position with the edge portions I9.

The shank portion H) of the fastenerisconnected to the head and is disposed in :a plane normal thereto, and preferably is located'at a position eccentrically of the headers shown, so as to be disposed centrally of the molding l. The attachment of the shank 19 to the head may be effected in any convenient manner, and where a headed bolt type-of shank is employed, as illustr-a'ted, the head H5 may be provided with an eccentric square opening to receive the squared portion 12- of the shank, the latter better being 7 from one side edge of said head and curving upwardly and inwardly to overliean opposite face of said head, a flange extending from the opposite edge of said head providing an end portion disposed in a plane at an acute angle to said head, and an upwardly and inwardly curling portion extending from said opposite edge adjacent said flange and having a tongue gcut therefrom disposedin the plane of said end portion of said flange and extending in a direction opposite thereto to provide anend edge disposed substantially in the plane of said one face of said head, said head providing a surface adjacent said one sideedge for engaging the inner face of a mold- "ing flange and said molding-engaging portion providing an arcuate surface for engaging an inner surface of a molding adjacent said molding flange, said flange element and said tongue providing camming surfaces for receiving an edge of an opposite flange of such molding, said end edge of said tongue and thefree end edge of said end portion of said flange being adapted to engage the inner face-of said opposite flange and 1 a substantially opposing portion of the inner face of said molding.

v WILMER H. v

' REFERENCES CITED 7 The following references are of record in the he of this"patent: J j

H UNITED STATES PATENTS Number Name a Date I 2,166,889 7 Churchill July 18, 1939 2,330,675 Brown Sept. 28, 1943 

